The Robo Raven Is So Lifelike, It Fools Birdbrains

We've been trying to create robots that mimic natural bird-flight for years, but they've only ever achieved a crude imitation. This is largely because, unlike the robots, real birds can move their wings independently. But now, a research team from the Maryland Robotics Center has created the Robo Crow, a mechanical flyer so biologically accurate that hawks keep hunting (and dive bombing) the prototypes.